[Asterisk-Users] SIP Phones behind dynamic IPs

[Chris Bagnall]

> 'recognize'? The phone cannot know that the external IP has 
> been changed, unless it is using a STUN server and 
> periodically re-doing the STUN queries (which I doubt any phones do).

Thanks for clearing up my misunderstanding as to the point of STUN. :-) I
thought the phone would query the STUN server at regular intervals to see if
the IP had changed.

Okay, so assuming I've got to drop the re-registration to a much shorter
time than the default of every hour, what are the implications of doing so
(in terms of network traffic, load on the asterisk box, etc.)? What's the
lowest one can reasonably take it? 10 minutes? 1 minute?

Thanks again.

Regards,

Chris
-- 
C.M. Bagnall, Director, Minotaur I.T. Limited
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